The sumatra-andaman earthquake of december 26, 2004 with an undersea epicenter off the west edit question the sumatra-andaman earthquake of december 26, 2004 with an undersea epicenter off the west coast of sumatra, indonesia, as reported in [1][2]. it triggered a series of devastating tsunamis that spread throughout the indian ocean killing approximately 230,000 people, including more than 168,000 in indonesia and over 30,000 in sri lanka [2]. sahana [2], a free and open source disaster management information system developed in sri lanka in the immediate aftermath of the indian ocean tsunami. suppose that sahana is addressing those recommendations and associated challenges from the tsunami evaluation commission (tec).

list out (4) factors when sahana project interface aren't user friendly